Patents by Inventor Suh-Bong Rhee

Suh-Bong Rhee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6172152
    Abstract: The present invention provides a sol-gel composition which comprises a mixture of a polyalkylene glycol-substituted trialkoxysilane (PAGTAS), a polyalkylene glycol and/or alkyl ether, a tetraalkoxysilane (TAOS), a hydrochloric acid, at least one organic solvent and/or a lithium salt, which mixture is optionally concentrated; a polymeric ion conductive film obtained by coating said compositions with a conventional solution processing method and solid electrochemical elements using the same. According to the present invention, a polymeric ion conductive film having no phase separation, strong adhesiveness for electrode, and ion conductivity of at least 1×10−4 S/cm at room temperature is provided.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: January 9, 2001
    Assignee: Korea Research Institute
    Inventors: Eun-Kyong Kim, Myung-Hoon Lee, Sung-Tai Ko, Kwang-Sup Lee, Yong-Bong Han, Suh-Bong Rhee, Chang-Jin Lee
  • Patent number: 6123875
    Abstract: The present invention relates to a process for producing a styrene-maleic acid polyethyleneoxy ester copolymer from compositions comprising a styrene-maleic anhydride copolymer, polyethyleneglycol and polyethyleneglycol monoalkyl ether (in a weight ratio of from 0 to 100% relative to the polythyleneglycol), the copolymer produced therefrom, an ion-conducting thin membrane composition produced with an electrolytic salt, an ion-conducting thin membrane containing the copolymer and a process for producing the same, a solid electrochemical material containing the copolymer. The copolymer according the present invention has a high solubility in organic solvent, a good rubber elasticity. The ion-conducting thin membrane comprising this copolymer and an electrolytic salt as major components has an excellent mechanical property, a high adhesive strength and a high ion conductivity at room temperature.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: September 26, 2000
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Eun Kyoung Kim, Wee Jin, Suh Bong Rhee, Chang Jin Lee
  • Patent number: 5795942
    Abstract: This invention relates to a process for preparing water soluble conductive polyaniline composite represented by the formula(III) which comprises reacting emeraldine base-type polyaniline(EB) representing by the formula(I) with poly(ethyleneglycol) hydrogen sulfate (PEGSF) represented by the formula(II), and to water soluble conductive polyaniline composite synthesized by the said process ##STR1## wherein, x is an integer or fractional number; y is 0 to 1 ##STR2## wherein, n is 4 to 200. ##STR3## wherein, x and n are same as defined above.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: August 18, 1998
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Suh Bong Rhee, Chang Jin Lee, Xianhong Wang
  • Patent number: 5686559
    Abstract: A poly(imide amic ester) having repeating unit of formula (I) and a process for the preparation thereof are provided, wherein formula (I) has the structure ##STR1## wherein Ar is, ##STR2## Ar' is, ##STR3## Ar" is ##STR4## R is selected from the group consisting of CH.sub.3, CH.sub.2 CH.sub.3, CH(CH.sub.3).sub.2, CH.sub.2 CH.sub.2 CH.sub.3, CH.sub.2 (CH(CH.sub.3).sub.2 and C(CH.sub.3).sub.3. Further, processes for the preparation of polyimide, polyimide film and polyimide fiber using the above poly(imide amic ester) are provided.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: November 11, 1997
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Suh Bong Rhee, Myong Hoon Lee, Ji Woong Park
  • Patent number: 5639398
    Abstract: Conductive liquid crystal polymer composites and a process for the preparation thereof are disclosed, as well as the preparation of liquid crystal alignment layers for liquid crystal displays and a process for the preparation thereof. Also, the disclosure relates to the preparation of conductive liquid crystalline polymer composites with an excellent processability and stability, and a process for the preparation of conductive alignment layers that reduce the static charge during the fabrication of the displays.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: June 17, 1997
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Suh Bong Rhee, Myong-Hoon Lee, Eunkyoung Kim
  • Patent number: 5453484
    Abstract: A diamine compound of the general formula ##STR1## wherein the arrows denote isomerism, R.sub.1 is a divalent aromatic group selected from the group consisting of ##STR2## R.sub.2 is a tetravalent aromatic group selected from the group consisting of ##STR3## and R.sub.4 is a monovalent aliphatic group selected from the group consisting of ethyl and isopropyl; and, a process for preparing same.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: September 26, 1995
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Suh Bong Rhee, Ji Young Chang, Bong Seok Moon, Ji-Woong Park
  • Patent number: 5357032
    Abstract: A diamine compound of the general formula ##STR1## wherein the arrows denote isomerism, R.sub.1 is a divalent aromatic group selected from the group consisting of ##STR2## R.sub.2 is a tetravalent aromatic group selected from the group consisting of ##STR3## and R.sub.4 is a monovalent aliphatic group selected from the group consisting of ethyl and isopropyl; and, a process for preparing same.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: October 18, 1994
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Suh Bong Rhee, Ji Y. Chang, Bong S. Moon, Ji-Woong Park